How to create matrix from x^3-8x^2-44x-49 (polynomal data)

asked 2021-08-14 16:46:03 +0200

Feofan-kornica
11 ●1

A=matrix([[2,4,5],[7,5,9],[3,2,1]]) A

edit retag flag offensive close merge delete

Comments

Welcome to Ask Sage! Thank you for your question.

slelievre ( 2021-08-15 00:12:10 +0200 )edit

Is your question how to find a matrix that has a specified characteristic polynomial?

slelievre ( 2021-08-15 00:12:38 +0200 )edit

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2021-08-15 05:05:43 +0200

John Palmieri

8551 ●19 ●71 ●186 http://www.math.washin...

If p is a polynomial, then matrix.companion(p) returns a matrix which has p as its characteristic polynomial. Since such matrices are not unique, you shouldn't expect it to give the precise matrix that you've specified.

edit flag offensive delete link

add a comment

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Question Tools

1 follower

Stats

Asked: 2021-08-14 16:46:03 +0200

Seen: 119 times

Last updated: Aug 14 '21

Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.

How to create matrix from x^3-8*x^2-44*x-49 (polynomal data) edit